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/*
* Copyright (C) 2020-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/windows/os_context_win.h"
#include "shared/source/execution_environment/execution_environment.h"
#include "shared/source/execution_environment/root_device_environment.h"
#include "shared/source/os_interface/debug_env_reader.h"
#include "shared/source/os_interface/os_interface.h"
#include "shared/source/os_interface/product_helper.h"
#include "shared/source/os_interface/windows/wddm/wddm.h"
#include "shared/source/os_interface/windows/wddm/wddm_interface.h"
namespace NEO {
OsContext *OsContextWin::create(OSInterface *osInterface, uint32_t rootDeviceIndex, uint32_t contextId, const EngineDescriptor &engineDescriptor) {
if (osInterface && osInterface->getDriverModel()->getDriverModelType() == DriverModelType::wddm) {
return new OsContextWin(*osInterface->getDriverModel()->as<Wddm>(), rootDeviceIndex, contextId, engineDescriptor);
}
return new OsContext(rootDeviceIndex, contextId, engineDescriptor);
}
OsContextWin::OsContextWin(Wddm &wddm, uint32_t rootDeviceIndex, uint32_t contextId, const EngineDescriptor &engineDescriptor)
: OsContext(rootDeviceIndex, contextId, engineDescriptor),
residencyController(wddm),
wddm(wddm) {
}
bool OsContextWin::initializeContext(bool allocateInterrupt) {
NEO::EnvironmentVariableReader envReader;
bool disableContextCreationFlag = envReader.getSetting("NEO_L0_SYSMAN_NO_CONTEXT_MODE", false);
if (!disableContextCreationFlag) {
if (wddm.getRootDeviceEnvironment().executionEnvironment.isDebuggingEnabled()) {
debuggableContext = wddm.getRootDeviceEnvironment().osInterface->isDebugAttachAvailable() && !isInternalEngine();
}
auto wddmInterface = wddm.getWddmInterface();
UNRECOVERABLE_IF(!wddm.createContext(*this));
if (wddmInterface->hwQueuesSupported()) {
UNRECOVERABLE_IF(!wddmInterface->createHwQueue(*this));
}
UNRECOVERABLE_IF(!wddmInterface->createMonitoredFence(*this));
residencyController.registerCallback();
UNRECOVERABLE_IF(!residencyController.isInitialized());
}
return true;
}
void OsContextWin::reInitializeContext() {
NEO::EnvironmentVariableReader envReader;
bool disableContextCreationFlag = envReader.getSetting("NEO_L0_SYSMAN_NO_CONTEXT_MODE", false);
if (!disableContextCreationFlag && !isPartOfContextGroup()) {
if (contextInitialized && (false == this->wddm.skipResourceCleanup())) {
wddm.getWddmInterface()->destroyHwQueue(hardwareQueue.handle);
wddm.destroyContext(wddmContextHandle);
}
UNRECOVERABLE_IF(!wddm.createContext(*this));
auto wddmInterface = wddm.getWddmInterface();
if (wddmInterface->hwQueuesSupported()) {
UNRECOVERABLE_IF(!wddmInterface->createHwQueue(*this));
UNRECOVERABLE_IF(!wddmInterface->createMonitoredFence(*this));
}
}
}
void OsContextWin::resetMonitoredFenceParams(D3DKMT_HANDLE &handle, uint64_t *cpuAddress, D3DGPU_VIRTUAL_ADDRESS &gpuAddress) {
monitoredFence.lastSubmittedFence = 0;
monitoredFence.currentFenceValue = 1;
monitoredFence.fenceHandle = handle;
monitoredFence.cpuAddress = cpuAddress;
monitoredFence.gpuAddress = gpuAddress;
}
void OsContextWin::getDeviceLuidArray(std::vector<uint8_t> &luidData, size_t arraySize) {
auto *wddm = this->getWddm();
auto *hwDeviceID = wddm->getHwDeviceId();
auto luid = hwDeviceID->getAdapterLuid();
luidData.reserve(arraySize);
for (size_t i = 0; i < arraySize; i++) {
char *luidArray = nullptr;
if (i < 4) {
luidArray = (char *)&luid.LowPart;
luidData.emplace(luidData.end(), luidArray[i]);
} else {
luidArray = (char *)&luid.HighPart;
luidData.emplace(luidData.end(), luidArray[i - 4]);
}
}
}
uint32_t OsContextWin::getDeviceNodeMask() {
auto *wddm = this->getWddm();
auto *hwDeviceID = wddm->getHwDeviceId();
return hwDeviceID->getAdapterNodeMask();
}
uint64_t OsContextWin::getOfflineDumpContextId(uint32_t deviceIndex) const {
return 0;
}
bool OsContextWin::isDirectSubmissionSupported() const {
auto &rootDeviceEnvironment = wddm.getRootDeviceEnvironment();
auto &productHelper = rootDeviceEnvironment.getHelper<ProductHelper>();
auto isWSL = rootDeviceEnvironment.isWddmOnLinux();
return !isWSL && productHelper.isDirectSubmissionSupported();
}
OsContextWin::~OsContextWin() {
if (contextInitialized && (false == this->wddm.skipResourceCleanup())) {
wddm.getWddmInterface()->destroyHwQueue(hardwareQueue.handle);
if (getMonitoredFence().fenceHandle != hardwareQueue.progressFenceHandle) {
wddm.getWddmInterface()->destroyMonitorFence(getMonitoredFence().fenceHandle);
}
if (!isPartOfContextGroup() ||
(isPartOfContextGroup() && getPrimaryContext() == nullptr)) {
wddm.destroyContext(wddmContextHandle);
}
}
}
} // namespace NEO
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